Thanks!

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Michael Blakeley
Sent: Thursday, February 05, 2009 10:32 AM
To: General Mark Logic Developer Discussion
Subject: Re: [MarkLogic Dev General] Can we run multiple instances of MarkLogic 
on the same server?

Mike,

Multiple instances on a single host are not supported, and I wouldn't 
recommend trying it. There are significant risks to stability and data 
integrity. I believe the overall effect would be increased complexity, 
not simplicity.

Maintaining multiple modules databases is fairly simple, though. You can 
give them different names, and set the app-server configurations 
appropriately: modules-app1, modules-app2, etc. It's very rare that any 
of your XQuery code will actually refer to a modules database by name, 
but you can audit for that.

But you might also be ok with a single modules database, and multiple 
roots. Each application could have its own root, plus a webdav server 
tied to that root, for module updates: app1/, app2/, etc.

I would try to avoid having multiple security databases, as well. If you 
use XQSync to copy content from, say, a windows content database to a 
linux content database, XQSync will transfer any document permissions by 
role name. These role names must exist in the target system's Security 
database.

   http://developer.marklogic.com/svn/xqsync/trunk/README.html

So if your role names do not overlap, then you may be ok with a single 
Security database. If they do overlap, you'll need to introduce some 
sort of domaining into your role names - perhaps "app-name.role-name"? 
That can be done before running XQSync.

thanks,
-- Mike

On 2009-02-05 09:06, Mike Bowers wrote:
> Can we run multiple instances of MarkLogic on the same server?
>
> We are running MarkLogic on Windows and on Linux. We would like to 
> consolidate servers. Rather than creating multiple security and modules 
> databases within the same instance of MarkLogic, we would prefer the 
> simplicity of having multiple instances of MarkLogic run on the same server.
>
>
>
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